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Winston's Hiccup or Churchill's Sneeze is the huge zigzag in Jordan's eastern border with Saudi Arabia, supposedly because Winston Churchill drew the boundary of Transjordan after a generous and lengthy lunch.
In the modern era, Jordan's boundaries with Saudi Arabia, Syria, and Iraq do not generally hamper tribal nomads in their movements, although for a few tribes the borders do technically separate them from traditional grazing areas. Conversely, the border between Jordan and Israel is governed more heavily. Officially, the borders were set by a series of agreements between the United Kingdom and the government of what eventually became Saudi Arabia, first formally defined in the Hadda Agreement of 1925. In 1965, Jordan and Saudi Arabia concluded a bilateral agreement that realigned and defined the boundary. The realignment resulted in some exchange of territory, and Jordan's coastline on the Gulf of Aqaba was lengthened by about 18 kilometers.